Datasheet

TDA7496
4/11
APPLICATION SUGGESTIONS
The recommended values of the external components are those shown on the application circuit of figure 1.
Different values can be used, the following table can help the designer.
Figure 1. Application Circui
COMPONENT
SUGGESTION
VALUE
PURPOSE
LARGER THAN
SUGGESTION
SMALLER THAN
SUGGESTION
R1 300K Volume Control Circuit Larger volume regulation
time
Smaller volume regulation
time
R2 10K Mute time constant Larger mute on/off time Smaller mute on/off time
P1 50K Volume Control Circuit
C1 1000µF Supply voltage bypass Danger of oscillation
C2 470nF Input DC decoupling Lower low frequency cutoff Higher low frequency cutoff
C3 470nF Input DC decoupling Lower low frequency cutoff Higher low frequency cutoff
C4 470µF Ripple rejection Better SVR Worse SVR
C5 100nF Volume control time
constant
Larger volume regulation
time
Smaller volume regulation
time
C6 1000µF Output DC decoupling Lower low frequency cutoff Higher low frequency cutoff
C7 1µF Mute time constant Larger mute on/off time Smaller mute on/off time
C8 1000µF Output DC decoupling Lower low frequency cutoff Higher low frequency cutoff
C9 100nF Supply voltage bypass Danger of oscillation
VOLUME
OP AMP
+
-
MUTE/STBY
PROTECTIONS
1
C2 470nF
INR
30K
VOLUME
OP AMP
+
-30K
C8 1000µF
C6 1000µF
C7
1µF
R2 10K
5
C3 470nF
INL
8
S_GND
2
14
9
10
12
34
R1 300K
C5
100nF
VOLUME
OUTR
S1 STBY
S2 MUTE
OUTL
11
C4 470µF
SVR 7
D96AU493D
V
S
VAROUT_R
PW_GND
15
13
C9
0.1µF
C1
1000µF
+V
S
PW_GND
VOL
P1
50K
LOG
+5V
TP1
PW_GND
PW_GND
S_GND
+5V
+5V
VAROUT_L